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BS ISO 6611:2004

Current
Current

The latest, up-to-date edition.

Milk and milk products. Enumeration of colony-forming units of yeasts and/or moulds. Colony-count technique at 25°C
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-31-2010

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Diluents and culture medium
6 Apparatus and glassware
7 Sampling
8 Procedure
9 Expression of results
10 Repeatability
11 Test report
Bibliography

Describes a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 degrees C.

This International Standard specifies a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 °C.

The method is applicable to

  • milk, liquid milk products,

  • dried milk, dried sweet whey, dried buttermilk, lactose,

  • cheese,

  • acid casein, lactic casein, rennet casein,

  • caseinate, acid whey powder,

  • butter,

  • frozen milk products (including edible ices),

  • custard, desserts, fermented milk and cream.

NOTE This method is not suitable for a large number of thermolabile yeasts (in fresh cheese). In such cases the agar-surface-plating method is preferred.

Committee
AW/5
DevelopmentNote
Reviewed and confirmed by BSI, October 2007. (09/2007) Supersedes BS 4285-3.6(1986). (07/2010)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 6611:2004 Identical

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 6887-1:2017 Microbiology of the food chain — Preparation of test samples, initial suspension and decimal dilutions for microbiological examination — Part 1: General rules for the preparation of the initial suspension and decimal dilutions
ISO 7218:2007 Microbiology of food and animal feeding stuffs General requirements and guidance for microbiological examinations
ISO 707:2008 Milk and milk products — Guidance on sampling
ISO 8261:2001 Milk and milk products General guidance for the preparation of test samples, initial suspensions and decimal dilutions for microbiological examination
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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Hardcopy - English
PDF - English
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